Christianity without a Creed risks becoming an endorsement of works righteousness, of human effort at being a decent person. With the Creed, Christianity becomes a remembering of what has been accomplished through Christ.
To say that Rohr is outside the bounds of the mainstream Christian theological tradition is not a harsh attack on him. Rather it is to simply take him seriously.
Voices began to find one another in the room. They coalesced starting around “one Lord, Jesus Christ” and by the time we got to “God from God, Light from Light” we were united in one strong vox populi.